Window



Oct. 15, 1935. G, R, CARL I 2,017,652

` wINDow Filed Jan. 12, 1934 4 Sheets-Shea?l 1 In @www zw @afg G. R.CARL Oct. .15, 1935.

WINDOW v Filed Jan. 12, 1954 4 Sheets-Sheet 2l Guv QTZ, l 2,77 ZM Oct.l5, 1935. 0 .j-R. CARL 2,017,652

IWINDOW Filed Jan. l2, 1934 4 Sheets-Sheet 3 @M5750 j. 2275 j @ZM @f mOct. 15, 1935.

G. R. cARL WINDOW Filed Jan. l2, 1934 4 Sheets-Sheet 4 Patented Oct. 15,1935 UNITED STATES [PATENT OFFICE WINDOW Gustav R. Carl, Chicago, Ill.

Application January 12, 1934, Serial No. 106,374

Claims.

This invention relates to windows of the double hung or sliding type .inwhich the sash are pivoted so that they may be swung inwardly .as forcleaning or the like.

=5` The objects of this invention are to provide an improved windowwhich may be economically manufactured and which will be particularlydurable and convenient in operation; to provide a double hung windowwith means for pivoting the sash and means for counter-balancing the`same whereby the sash may be held in various vertical or tippedpositions; to provide a window of the character indicated with novelstops or guides for facilitating or controlling the movements of theupper and lower sash; and to provide such further improvements inconstrucline 5 5 of Figure 1;

Figure 6 is a sectional view taken on the line 6 6 of Figure 5; andFigure 1 is a sectional view taken on the line 1 1 of Figure 6.

A window frame or easement I Il is provided with sides o-r stiles II,trim I2, stool or sill I3 and top I4. The lower sash I5 is provided withpivots I 5 adjacent to the lower edge for pivoting the same to slides orsupporting members I1 which preferably extend upwardly to approximatelythe top of the sash and which are formed to make close contact with thesides thereof. The upper edge of `the sash may be fastened or locked tothe slides I1 by means' of slidable catches I8 which may be movedoutwardly, as

shown in Figures 4 and 7, to engage with notches or recesses I9 in theslides. Links 20 have their lower ends pivoted at 2| to the sides of thesash a short distance above the pivots I6 and when in y normal positionextend upwardly along the sides of the sash as shown particularly inFigures 6 and '1. The upper ends of the links have pins or trunnions 22which extend outwardly through slots 23 in the slides I1. Thesetrunnions engage with channel-shaped supports or bearings 2li which iitclosely in the slides I1 and are adapted to move longitudinally of .thesame. The bearings 24 are secured to the lower ends of the counterweightribbons or cords 25 which are connected with any suitablecounterweig'hts or spring balance devices (not shown), such as are 5commonly used for this purpose.

The slides or .supporting members I1 operate in grooves 26 in the frame,these grooves being conveniently formed by means of auxiliary stilestrips 21 and 28. The lower sash is adapted to 10 swing between thestrips 28 and the side rails 29 of the sash are recessed as shown at 30to allow for the clearance for the slides I1 and the links 20.

Combined stop and guide members 3| are provided on the stiles or sidesof the frame as shown 15 in Figure 1, these stops being arranged at ashort distance above the top of the lower sash when it is in closedposition and being adapted to register with the side rails of the sashto prevent outward movement of the same when the 20 sash is movedupwardly. Two pawls or detents 32 are pivoted `at 33 to the slides I1 ata short distance from the upper ends thereof. These pawls are preferablyactuated by gravity and Y are limited in their movements by stop pins 3425 and 35.

When the lower sash is locked or fastened to the slides I1 by means ofthe catches I8, it may be moved up and down as an ordinary double hungwindow. Ii? the catches I 8 are not fastened, the stops 3l will serve asguides to prevent the sash from swinging outwardly on its pivots.

When the lower sash is to be swung inwardly it is raised a shortdistance so as to clear the sill I2 and so that the upper edge will passunder the stops 3I. The initial outward movement of the sash tendsto-raise the slides I1 until the pawls or detents 32 engage witlf'thestops 3l thus preventing further movement oi the slides. As the sash isswung downwardly, as indicated in Figure 3, the links 20 swing out andpulldown against the tension of the counterweight strips-25. Thetrunnions 22 are guided in the slots 23 in this movement and the partsare preferably so proportioned that the sash 4 will be held. in anyadjusted position. 'Ihe downward swinging movement of the sash isstopped when the trunnions engage with the lower ends of the slots, thuspreventing further movement of the links. When the sash is swung 5 tonormal position the pawls 32 are swung inwardly so that they will notengage with the Astops 3| and they are concealed and held in retractedposition by the sash.

The top sash 36 slides between the stile pieces 55 21 and is guided bythe frame members 31 and parting strips 38. The parting strips stop justbelow the lower edge of the sash when it is in raised position so thatthe top of the sash will clear the same when the sash is swung inwardly.The top sash is supported in a manner similar to the bottom sash, beingprovided with pivots 39 which engage with channel shaped slides 40 whichslide in recesses 4l in the stile pieces 21. Guide brackets or angles 42are secured to the rear frame members 31 and serve to hold the slides 4Din their grooves when the frame is swung inwardly and similar guides 42aare provided for the slides l1. Links 43 have their lower ends pivotedat 44 to the sides of the sash and their upper ends are provided withtrunnions or pins 45 which extend through slots 46 in the channels orslides 4D. The trunnions or pins 45 engage with channel shaped bearings41 which slide in the channels 40 and which are connected to the lowerends'ofV the counter-weight cords or strips 48 which pass up overpulleys 49 and connect with any suitable counter-balance devices.

The slides 45 are provided'with pawls or detents 5U which are pivotedthereto at 5l Vat a suitable distance from the tops of the channels.These pawls are preferably arranged so that they will normally swinginwardly by gravity and their swinging movement is limited by pins 52and 53. These pawls are adapted to engage at times with the lower endsof the parting strips 38 as shown in Figure 3. The side rails of thesash are grooved or recessed as shown at 54 to provide clearance for-thelinks 43 and the pawls 50.

When the upper sash is to be swung inwardly, the lower sash is rst swungin to provide room therefor as shown in Figure 3. The upper sash is thenslid downwardly until the top edge will clear the parting rails 38 asshown in full lines in said iigure. Thereupon the window is raisedsomewhat as indicated by the arrows X until the pivoted edge is abovethe surface of the lower sash. The top sash may then be swung inwardlyon its pivots, the upward movement of the slides 40 being prevented bythe pawls 5B which swing out and engage with the lower ends of theparting rails 38. The continued swinging movement of the sash tends topull the linksdown against the tension of the counter-balance members sothat the sash is balanced in all positions. The downward movement isstopped when the trunnions 45 engage with the lower ends of the slots46. When the upper sash is again swung back to normal position it willswing the pawls 5B back to retarded position so` that the sash willagain be free to move up and down in its grooves in the usual manner.AWhen both of the windows are closed they may be locked by means of acatch 55 as shown in Figure 1, and other attachments such as commonlyused for windows of this kind may be provided.

While I have shown and described a window provided with two sashes it isapparent that certain features of the invention may be utilized for awindow having a single sash or a plurality of sashes and it is alsoapparent that changes may be made in the details of construction orarrangements of the parts in orderto adapt the same for dilerentinstallations and therefore I do not wish to be limited to theconstruction herein shown and-described except as speciiled in thefollowing claims, in which I claim:

1. A window including a frame having guideways in the sides thereof,slides mounted in said' guideways, a sash pivoted: at its loweredge tosaid slides' and adapted to t closely between the slides, linkspivotally connected at their lower ends to the sash at a distance abovethe sas-h pivots, pins secured to the upper ends of the links andprojecting through slots in said 5 means on said slides adapted toengage with the stop members to prevent the upward movement of -theslides when the sash is swung inwardly. 15

2. `Ina double hung window, the combination f of a easement havingvertical grooves therein, channels slidably mounted in said grooves, asashpivotally mounted at the lower ends o-i' the channels and nttingclosely therebetween, links 20 having their lower ends pivotallyconnected with the sash, trunnions secured to the upper ends of thelinks and extending outwardly through slots in the channels, said slotsserving to limit the upward and downward movement of the trimnionstherein, bearings engaging with said trunnions, counter balancesconnected with the bearings, stops secured tothe sides of the Casementabove the sash when it is in lowered position, and pawls secured to thechannels and adapted to engage with said stops when the sash is swunginwardly, the sash being arranged to move the pawls out of engagingposition when the sash is adjusted for vertical movemen 3. In a doublehung window, the combination of a frame having auxiliary stilefstripsfor the top sash, parting strips secured to the stile strips, said stilestrips having recesses therein, an upper sash, channel shaped slides ofapproximately the same length as the sash mounted in said recesses andadapted to slide therein,` pivots connecting' the lower portions of thesash with said channels, links pivoted to the sash, pins at the upperends of said links' extending through elongated slots in the slides,bearings in the slides 5 connected with said pins, c'ounterbalancesconnected with said bearings, pawls secured to the slides which arenormally inactive but which are adapted to engage, with the lower endsof the parting strips to prevent the upward movement 50 of the sash whenit is swung inwardly, a lower sash which is wider than the upper sash,grooves in the Window frame, slides arranged in said grooves which aresubstantially the same length as the lower sash, pivotal connectionsbetween u the lower ends of the slides and the sash, links pivoted tothe lower sash and extending upwardly, pins on the upper ends of thelinks engaging with elongated slots in the slides, bearings engagingwith said pins, counterbalances connected with said bearings, stops onthe frame and pawls on the last named slides which are normally inactivebut which are adapted to engage with said stops when the lower sash isswung inwardly.

4. A double hung window including a frame, auxiliary stile stripsextending longitudinally of the frame and forming a narrower opening fortheupper sash than for the lower sash, parting, strips extendingapproximately to the lower edge 70 of the opening for the upper sash,recesses ex- Y tending longitudinally of the auxiliary stile strips,

slides mounted in said recesses, an upper sash which is narrower thanthe lower sash and which engages closely with the slides, pivotalconnections between the lower portions of the upper sash and the slides,links pivoted to the sides of the upper sash and arranged in rabbetstherein, pins at the upper ends of the links extending outwardly throughslots in the slides, said slots serving to guide and to limit themovement of the pins, counter-balances connected with said pins, pawlssecured tothe slides and adapted to engage with the lower ends of theparting strips to prevent the upward movement of the sash When it is inswinging position, a lower sash, vertically movable slides arranged ingrooves in the frame and making' close contact with the lower sash,pivotal connections between the lower portion of the lower sash and saidslides, links pivoted to said lower sash, pins at the upper ends of saidlinks engaging with slots in the slides which are adapted to guide andlimit the movement of the pins, counter-balances conneeted with saidpins, stops on the trame and pawls on the last named slides adapted toengage with the stops when the lower sash is in swinging position.

5. In a window construction, the combination of a. sash, slidespivotally'connected at their lower ends to the sash and adapted to guidethe same in its vertical movement, a frame having guideways in whichsaid slides are mounted, stops on the sides of said frame, pawls on theslides for engagement with the stops, said pawls being.

pivoted at their lower ends and means for limiting the swinging movementthereof, said pawls being held in retracted position by the sash whenthe sash is in sliding position, and adapted to move outwardly bygravity into position to engage with the stops when the sash is swunginwardly on its pivots.

GUSTAV R. CARL.

